... information: Flat washerStandard: ASME/ANSI B18.22.1 F436/USS/SAE, DIN125A, DIN125B, DIN126, DIN433, DIN440, DIN7349, DIN988, DIN9021Size: #6 – ... Brass,copper etc.Finish: Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G etc.Packing: bulk ... Alloy Steel, Stainless Steel, Brass,copper etc.Finish:Plain,Black,Zinc plated, yellow zinc plated, hot-dip galvanized Nickel Plated ...